> For the complete documentation index, see [llms.txt](https://docs.pentaho.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.pentaho.com/install/9.3-install/use-hadoop-with-pentaho/get-started-with-hadoop-and-pdi/before-you-begin-get-started-with-hadoop-and-pdi/manage-hadoop-configurations-through-pdi/include-or-exclude-classes-or-packages-for-a-hadoop-configuration.md).

# Include or exclude classes or packages for a Hadoop configuration

You have the option to include or exclude classes or packages from loading with a Hadoop configuration.

Configure these options within the `plugin.properties` file located at `plugins/pentaho-big-data-plugin`. For additional information, see the comments within the `plugin.properties` file.

* **Include Additional Class Paths or Libraries**

  To include additional class paths, native libraries, or a user-friendly configuration name, include the directory within **classpath** property within the big data `plugin.properties` file.
* **Exclude Classes or Packages**

  To exclude classes or packages from duplicate loading by a Hadoop configuration class loader, include them in the **ignored.classes** property within the `plugin.properties` file. This is necessary when logging libraries expect a single class shared by all class loaders, as with Apache Commons Logging for example


---

# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter:

```
GET https://docs.pentaho.com/install/9.3-install/use-hadoop-with-pentaho/get-started-with-hadoop-and-pdi/before-you-begin-get-started-with-hadoop-and-pdi/manage-hadoop-configurations-through-pdi/include-or-exclude-classes-or-packages-for-a-hadoop-configuration.md?ask=<question>&goal=<endgoal>
```

`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal.

The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.